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EGR Cooler Removal/Installation: Notes

  1. Disconnect the negative battery terminal. (See REQUIRED PROCEDURE AFTER NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Drain the engine coolant. (See ENGINE COOLANT REPLACEMENT .)
  3. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION .)
  4. Disconnect the wiring harness clips from the EGR cooler.
    G11436245Courtesy of MAZDA MOTORS CORP.
  5. Disconnect the EGR valve connector. (See EGR VALVE REMOVAL/INSTALLATION .)
  6. Disconnect the exhaust gas pressure sensor connector. (See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION .)
  7. Disconnect the MAP sensor/IAT sensor No. 2 connector. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 2 REMOVAL/INSTALLATION .)
  8. Remove in the order indicated in the table.
    Fig 1: EGR Cooler Components With Torque Specification
    G11436246Courtesy of MAZDA MOTORS CORP.
    COMPONENT DESCRIPTION

    1 Insulator
    2 Water hose No. 1
    (See Water Hose No. 1 Installation Note .)
    3 EGR cooler installation bolt
    (See EGR Cooler Installation Bolt Removal Note .)
    (See EGR Cooler Installation Bolt Installation Note .)
    4 Water hose No. 2
    5 Water hose No. 3
    6 EGR cooler
    7 EGR valve
    8 Exhaust gas pressure sensor
    (See EXHAUST GAS PRESSURE SENSOR REMOVAL/INSTALLATION .)
  9. Install in the reverse order of removal.